Home / 127,935.20-191,643.60-72,466.40

Finding the Fourth Proportional to 127,935.20, 191,643.60 and 72,466.40

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Solution

The fourth proportional to 127,935.20, 191,643.60 and 72,466.40 is: 108,552.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,935.20 : 191,643.60 = 72,466.40 : x
  2. Step 2: Convert to fraction form
    127,935.20/191,643.60 = 72,466.40/x
  3. Step 3: Cross multiply
    127,935.20x = 191,643.60 × 72,466.40
  4. Step 4: Simplify right side
    127,935.20x = 13,887,721,775.04
  5. Step 5: Solve for x
    x = 13,887,721,775.04/127,935.20
  6. Step 6: Final answer
    x = 108,552.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.